/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe005_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-11 15:02:33,126 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-11 15:02:33,129 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-11 15:02:33,152 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-11 15:02:33,153 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-11 15:02:33,154 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-11 15:02:33,155 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-11 15:02:33,157 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-11 15:02:33,159 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-11 15:02:33,160 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-11 15:02:33,161 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-11 15:02:33,162 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-11 15:02:33,162 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-11 15:02:33,163 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-11 15:02:33,164 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-11 15:02:33,166 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-11 15:02:33,166 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-11 15:02:33,167 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-11 15:02:33,169 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-11 15:02:33,171 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-11 15:02:33,176 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-11 15:02:33,177 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-11 15:02:33,178 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-11 15:02:33,179 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-11 15:02:33,181 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-11 15:02:33,184 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-11 15:02:33,185 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-11 15:02:33,186 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-11 15:02:33,186 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-11 15:02:33,187 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-11 15:02:33,188 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-11 15:02:33,188 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-11 15:02:33,189 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-11 15:02:33,189 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-11 15:02:33,190 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-11 15:02:33,190 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-11 15:02:33,191 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-11 15:02:33,213 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-11 15:02:33,213 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-11 15:02:33,215 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-11 15:02:33,215 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-11 15:02:33,215 INFO L138 SettingsManager]: * Use SBE=true [2020-10-11 15:02:33,215 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-11 15:02:33,215 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-11 15:02:33,216 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-11 15:02:33,216 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-11 15:02:33,216 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-11 15:02:33,216 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-11 15:02:33,216 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-11 15:02:33,216 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-11 15:02:33,217 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-11 15:02:33,217 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-11 15:02:33,217 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-11 15:02:33,217 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-11 15:02:33,217 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-11 15:02:33,218 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-11 15:02:33,218 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-11 15:02:33,218 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-11 15:02:33,218 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-11 15:02:33,218 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-11 15:02:33,219 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-11 15:02:33,219 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-11 15:02:33,219 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-11 15:02:33,219 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-11 15:02:33,219 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-11 15:02:33,220 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-11 15:02:33,220 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-11 15:02:33,517 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-11 15:02:33,534 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-11 15:02:33,538 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-11 15:02:33,540 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-11 15:02:33,547 INFO L275 PluginConnector]: CDTParser initialized [2020-10-11 15:02:33,548 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe005_tso.opt.i [2020-10-11 15:02:33,625 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4b910d3e/428c534be5d74bdbacacc545fbd50c59/FLAG192886d34 [2020-10-11 15:02:34,149 INFO L306 CDTParser]: Found 1 translation units. [2020-10-11 15:02:34,149 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe005_tso.opt.i [2020-10-11 15:02:34,166 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4b910d3e/428c534be5d74bdbacacc545fbd50c59/FLAG192886d34 [2020-10-11 15:02:34,454 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4b910d3e/428c534be5d74bdbacacc545fbd50c59 [2020-10-11 15:02:34,466 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-11 15:02:34,468 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-11 15:02:34,469 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-11 15:02:34,469 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-11 15:02:34,473 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-11 15:02:34,474 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:02:34" (1/1) ... [2020-10-11 15:02:34,477 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bd3a15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:02:34, skipping insertion in model container [2020-10-11 15:02:34,478 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:02:34" (1/1) ... [2020-10-11 15:02:34,486 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-11 15:02:34,551 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-11 15:02:34,989 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 15:02:35,001 INFO L203 MainTranslator]: Completed pre-run [2020-10-11 15:02:35,044 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 15:02:35,132 INFO L208 MainTranslator]: Completed translation [2020-10-11 15:02:35,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:02:35 WrapperNode [2020-10-11 15:02:35,133 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-11 15:02:35,133 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-11 15:02:35,133 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-11 15:02:35,134 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-11 15:02:35,142 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:02:35" (1/1) ... [2020-10-11 15:02:35,175 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:02:35" (1/1) ... [2020-10-11 15:02:35,203 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-11 15:02:35,203 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-11 15:02:35,203 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-11 15:02:35,204 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-11 15:02:35,213 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:02:35" (1/1) ... [2020-10-11 15:02:35,213 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:02:35" (1/1) ... [2020-10-11 15:02:35,222 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:02:35" (1/1) ... [2020-10-11 15:02:35,223 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:02:35" (1/1) ... [2020-10-11 15:02:35,228 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:02:35" (1/1) ... [2020-10-11 15:02:35,235 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:02:35" (1/1) ... [2020-10-11 15:02:35,237 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:02:35" (1/1) ... [2020-10-11 15:02:35,241 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-11 15:02:35,241 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-11 15:02:35,242 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-11 15:02:35,242 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-11 15:02:35,244 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:02:35" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-11 15:02:35,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-11 15:02:35,312 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-11 15:02:35,312 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-11 15:02:35,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-11 15:02:35,312 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-11 15:02:35,313 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-11 15:02:35,313 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-11 15:02:35,314 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-11 15:02:35,314 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-11 15:02:35,314 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-11 15:02:35,315 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-11 15:02:35,315 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-11 15:02:35,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-11 15:02:35,317 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-11 15:02:35,624 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-11 15:02:35,624 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-11 15:02:35,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:02:35 BoogieIcfgContainer [2020-10-11 15:02:35,626 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-11 15:02:35,628 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-11 15:02:35,628 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-11 15:02:35,631 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-11 15:02:35,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 03:02:34" (1/3) ... [2020-10-11 15:02:35,632 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@741ef743 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:02:35, skipping insertion in model container [2020-10-11 15:02:35,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:02:35" (2/3) ... [2020-10-11 15:02:35,633 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@741ef743 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:02:35, skipping insertion in model container [2020-10-11 15:02:35,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:02:35" (3/3) ... [2020-10-11 15:02:35,635 INFO L111 eAbstractionObserver]: Analyzing ICFG safe005_tso.opt.i [2020-10-11 15:02:35,647 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-11 15:02:35,648 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-11 15:02:35,655 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-11 15:02:35,656 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-11 15:02:35,688 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:02:35,689 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:02:35,689 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:02:35,689 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:02:35,690 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:02:35,690 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:02:35,691 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:02:35,691 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:02:35,691 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:02:35,692 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:02:35,692 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:02:35,692 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:02:35,693 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:02:35,693 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:02:35,693 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:02:35,693 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:02:35,694 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:02:35,694 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:02:35,698 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:02:35,698 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:02:35,698 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:02:35,699 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:02:35,704 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:02:35,705 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:02:35,705 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:02:35,705 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:02:35,708 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:02:35,708 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:02:35,708 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:02:35,708 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:02:35,724 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-11 15:02:35,743 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-11 15:02:35,743 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-11 15:02:35,744 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-11 15:02:35,744 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-11 15:02:35,744 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-11 15:02:35,744 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-11 15:02:35,744 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-11 15:02:35,744 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-11 15:02:35,757 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-11 15:02:35,759 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 70 transitions, 155 flow [2020-10-11 15:02:35,761 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 70 transitions, 155 flow [2020-10-11 15:02:35,762 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-10-11 15:02:35,807 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-10-11 15:02:35,808 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 15:02:35,813 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-11 15:02:35,816 INFO L117 LiptonReduction]: Number of co-enabled transitions 1260 [2020-10-11 15:02:37,442 INFO L132 LiptonReduction]: Checked pairs total: 2936 [2020-10-11 15:02:37,443 INFO L134 LiptonReduction]: Total number of compositions: 59 [2020-10-11 15:02:37,450 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-10-11 15:02:37,479 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-10-11 15:02:37,482 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-10-11 15:02:37,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-11 15:02:37,490 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:02:37,491 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:02:37,492 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:02:37,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:02:37,498 INFO L82 PathProgramCache]: Analyzing trace with hash 1655297948, now seen corresponding path program 1 times [2020-10-11 15:02:37,508 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:02:37,509 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999779032] [2020-10-11 15:02:37,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:02:37,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:02:37,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:02:37,713 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999779032] [2020-10-11 15:02:37,714 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:02:37,714 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-11 15:02:37,715 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286956903] [2020-10-11 15:02:37,720 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 15:02:37,721 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:02:37,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 15:02:37,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 15:02:37,737 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-10-11 15:02:37,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:02:37,787 INFO L93 Difference]: Finished difference Result 266 states and 752 transitions. [2020-10-11 15:02:37,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 15:02:37,789 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-11 15:02:37,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:02:37,805 INFO L225 Difference]: With dead ends: 266 [2020-10-11 15:02:37,805 INFO L226 Difference]: Without dead ends: 202 [2020-10-11 15:02:37,807 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 15:02:37,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-10-11 15:02:37,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2020-10-11 15:02:37,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-10-11 15:02:37,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 544 transitions. [2020-10-11 15:02:37,888 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 544 transitions. Word has length 8 [2020-10-11 15:02:37,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:02:37,889 INFO L481 AbstractCegarLoop]: Abstraction has 202 states and 544 transitions. [2020-10-11 15:02:37,889 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-11 15:02:37,889 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 544 transitions. [2020-10-11 15:02:37,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-11 15:02:37,891 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:02:37,892 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:02:37,892 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-11 15:02:37,892 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:02:37,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:02:37,893 INFO L82 PathProgramCache]: Analyzing trace with hash 1603389483, now seen corresponding path program 1 times [2020-10-11 15:02:37,893 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:02:37,894 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395296638] [2020-10-11 15:02:37,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:02:37,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:02:37,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:02:37,964 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395296638] [2020-10-11 15:02:37,964 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:02:37,964 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 15:02:37,964 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023908403] [2020-10-11 15:02:37,966 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 15:02:37,966 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:02:37,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 15:02:37,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 15:02:37,967 INFO L87 Difference]: Start difference. First operand 202 states and 544 transitions. Second operand 4 states. [2020-10-11 15:02:38,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:02:38,002 INFO L93 Difference]: Finished difference Result 254 states and 666 transitions. [2020-10-11 15:02:38,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-11 15:02:38,003 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-11 15:02:38,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:02:38,006 INFO L225 Difference]: With dead ends: 254 [2020-10-11 15:02:38,006 INFO L226 Difference]: Without dead ends: 190 [2020-10-11 15:02:38,007 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-11 15:02:38,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2020-10-11 15:02:38,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 190. [2020-10-11 15:02:38,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2020-10-11 15:02:38,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 502 transitions. [2020-10-11 15:02:38,026 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 502 transitions. Word has length 10 [2020-10-11 15:02:38,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:02:38,026 INFO L481 AbstractCegarLoop]: Abstraction has 190 states and 502 transitions. [2020-10-11 15:02:38,027 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 15:02:38,027 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 502 transitions. [2020-10-11 15:02:38,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-11 15:02:38,028 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:02:38,029 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:02:38,029 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-11 15:02:38,029 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:02:38,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:02:38,030 INFO L82 PathProgramCache]: Analyzing trace with hash -1533986257, now seen corresponding path program 1 times [2020-10-11 15:02:38,030 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:02:38,030 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073088598] [2020-10-11 15:02:38,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:02:38,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:02:38,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:02:38,127 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073088598] [2020-10-11 15:02:38,128 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:02:38,128 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 15:02:38,128 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339742831] [2020-10-11 15:02:38,129 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 15:02:38,129 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:02:38,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 15:02:38,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 15:02:38,130 INFO L87 Difference]: Start difference. First operand 190 states and 502 transitions. Second operand 4 states. [2020-10-11 15:02:38,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:02:38,161 INFO L93 Difference]: Finished difference Result 286 states and 722 transitions. [2020-10-11 15:02:38,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-11 15:02:38,162 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-11 15:02:38,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:02:38,164 INFO L225 Difference]: With dead ends: 286 [2020-10-11 15:02:38,164 INFO L226 Difference]: Without dead ends: 178 [2020-10-11 15:02:38,164 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-11 15:02:38,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-10-11 15:02:38,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 154. [2020-10-11 15:02:38,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-10-11 15:02:38,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 376 transitions. [2020-10-11 15:02:38,178 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 376 transitions. Word has length 11 [2020-10-11 15:02:38,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:02:38,178 INFO L481 AbstractCegarLoop]: Abstraction has 154 states and 376 transitions. [2020-10-11 15:02:38,178 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 15:02:38,178 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 376 transitions. [2020-10-11 15:02:38,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-11 15:02:38,180 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:02:38,180 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:02:38,180 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-11 15:02:38,180 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:02:38,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:02:38,181 INFO L82 PathProgramCache]: Analyzing trace with hash -1026948662, now seen corresponding path program 1 times [2020-10-11 15:02:38,181 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:02:38,181 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792468319] [2020-10-11 15:02:38,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:02:38,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:02:38,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:02:38,216 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792468319] [2020-10-11 15:02:38,216 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:02:38,216 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 15:02:38,216 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591434951] [2020-10-11 15:02:38,217 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 15:02:38,217 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:02:38,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 15:02:38,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 15:02:38,218 INFO L87 Difference]: Start difference. First operand 154 states and 376 transitions. Second operand 3 states. [2020-10-11 15:02:38,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:02:38,231 INFO L93 Difference]: Finished difference Result 174 states and 416 transitions. [2020-10-11 15:02:38,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 15:02:38,231 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-11 15:02:38,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:02:38,232 INFO L225 Difference]: With dead ends: 174 [2020-10-11 15:02:38,232 INFO L226 Difference]: Without dead ends: 72 [2020-10-11 15:02:38,233 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 15:02:38,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-10-11 15:02:38,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2020-10-11 15:02:38,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-10-11 15:02:38,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 154 transitions. [2020-10-11 15:02:38,238 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 154 transitions. Word has length 12 [2020-10-11 15:02:38,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:02:38,238 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 154 transitions. [2020-10-11 15:02:38,238 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-11 15:02:38,238 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 154 transitions. [2020-10-11 15:02:38,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-11 15:02:38,239 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:02:38,239 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:02:38,240 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-11 15:02:38,240 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:02:38,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:02:38,240 INFO L82 PathProgramCache]: Analyzing trace with hash -1770638686, now seen corresponding path program 1 times [2020-10-11 15:02:38,241 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:02:38,241 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924044086] [2020-10-11 15:02:38,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:02:38,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:02:38,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:02:38,346 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924044086] [2020-10-11 15:02:38,346 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:02:38,346 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 15:02:38,347 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974363074] [2020-10-11 15:02:38,347 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 15:02:38,347 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:02:38,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 15:02:38,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 15:02:38,348 INFO L87 Difference]: Start difference. First operand 72 states and 154 transitions. Second operand 4 states. [2020-10-11 15:02:38,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:02:38,380 INFO L93 Difference]: Finished difference Result 85 states and 167 transitions. [2020-10-11 15:02:38,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-11 15:02:38,381 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-11 15:02:38,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:02:38,382 INFO L225 Difference]: With dead ends: 85 [2020-10-11 15:02:38,382 INFO L226 Difference]: Without dead ends: 61 [2020-10-11 15:02:38,382 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-11 15:02:38,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-10-11 15:02:38,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2020-10-11 15:02:38,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-10-11 15:02:38,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 118 transitions. [2020-10-11 15:02:38,394 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 118 transitions. Word has length 13 [2020-10-11 15:02:38,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:02:38,394 INFO L481 AbstractCegarLoop]: Abstraction has 61 states and 118 transitions. [2020-10-11 15:02:38,395 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 15:02:38,395 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 118 transitions. [2020-10-11 15:02:38,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-11 15:02:38,395 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:02:38,396 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:02:38,396 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-11 15:02:38,396 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:02:38,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:02:38,396 INFO L82 PathProgramCache]: Analyzing trace with hash -1873051802, now seen corresponding path program 1 times [2020-10-11 15:02:38,397 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:02:38,400 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128588316] [2020-10-11 15:02:38,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:02:38,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:02:38,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:02:38,460 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128588316] [2020-10-11 15:02:38,460 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:02:38,461 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 15:02:38,461 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698953163] [2020-10-11 15:02:38,461 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-11 15:02:38,461 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:02:38,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-11 15:02:38,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-11 15:02:38,462 INFO L87 Difference]: Start difference. First operand 61 states and 118 transitions. Second operand 5 states. [2020-10-11 15:02:38,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:02:38,496 INFO L93 Difference]: Finished difference Result 62 states and 108 transitions. [2020-10-11 15:02:38,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-11 15:02:38,497 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-11 15:02:38,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:02:38,497 INFO L225 Difference]: With dead ends: 62 [2020-10-11 15:02:38,498 INFO L226 Difference]: Without dead ends: 47 [2020-10-11 15:02:38,498 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-11 15:02:38,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-10-11 15:02:38,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-10-11 15:02:38,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-10-11 15:02:38,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 78 transitions. [2020-10-11 15:02:38,501 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 78 transitions. Word has length 14 [2020-10-11 15:02:38,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:02:38,501 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 78 transitions. [2020-10-11 15:02:38,501 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-11 15:02:38,501 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 78 transitions. [2020-10-11 15:02:38,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-11 15:02:38,502 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:02:38,502 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:02:38,503 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-11 15:02:38,503 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:02:38,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:02:38,503 INFO L82 PathProgramCache]: Analyzing trace with hash 877737129, now seen corresponding path program 1 times [2020-10-11 15:02:38,503 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:02:38,504 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598862943] [2020-10-11 15:02:38,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:02:38,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:02:38,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:02:38,547 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598862943] [2020-10-11 15:02:38,547 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:02:38,547 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-11 15:02:38,548 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286553554] [2020-10-11 15:02:38,548 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-11 15:02:38,548 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:02:38,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-11 15:02:38,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-11 15:02:38,549 INFO L87 Difference]: Start difference. First operand 47 states and 78 transitions. Second operand 6 states. [2020-10-11 15:02:38,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:02:38,591 INFO L93 Difference]: Finished difference Result 44 states and 70 transitions. [2020-10-11 15:02:38,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-11 15:02:38,592 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-11 15:02:38,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:02:38,593 INFO L225 Difference]: With dead ends: 44 [2020-10-11 15:02:38,593 INFO L226 Difference]: Without dead ends: 38 [2020-10-11 15:02:38,593 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-11 15:02:38,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-10-11 15:02:38,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-10-11 15:02:38,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-10-11 15:02:38,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 60 transitions. [2020-10-11 15:02:38,596 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 60 transitions. Word has length 15 [2020-10-11 15:02:38,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:02:38,596 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 60 transitions. [2020-10-11 15:02:38,597 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-11 15:02:38,597 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 60 transitions. [2020-10-11 15:02:38,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-11 15:02:38,597 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:02:38,598 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:02:38,598 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-11 15:02:38,598 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:02:38,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:02:38,598 INFO L82 PathProgramCache]: Analyzing trace with hash 1637147722, now seen corresponding path program 1 times [2020-10-11 15:02:38,599 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:02:38,599 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281891885] [2020-10-11 15:02:38,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:02:38,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:02:38,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:02:38,631 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281891885] [2020-10-11 15:02:38,631 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:02:38,632 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 15:02:38,632 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130495309] [2020-10-11 15:02:38,632 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 15:02:38,633 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:02:38,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 15:02:38,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 15:02:38,633 INFO L87 Difference]: Start difference. First operand 38 states and 60 transitions. Second operand 4 states. [2020-10-11 15:02:38,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:02:38,643 INFO L93 Difference]: Finished difference Result 37 states and 59 transitions. [2020-10-11 15:02:38,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-11 15:02:38,644 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-11 15:02:38,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:02:38,644 INFO L225 Difference]: With dead ends: 37 [2020-10-11 15:02:38,644 INFO L226 Difference]: Without dead ends: 0 [2020-10-11 15:02:38,645 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-11 15:02:38,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-11 15:02:38,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-11 15:02:38,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-11 15:02:38,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-11 15:02:38,646 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-10-11 15:02:38,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:02:38,646 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-11 15:02:38,646 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 15:02:38,646 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-11 15:02:38,646 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-11 15:02:38,646 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-11 15:02:38,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 03:02:38 BasicIcfg [2020-10-11 15:02:38,649 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-11 15:02:38,652 INFO L168 Benchmark]: Toolchain (without parser) took 4183.56 ms. Allocated memory was 249.0 MB in the beginning and 366.5 MB in the end (delta: 117.4 MB). Free memory was 203.8 MB in the beginning and 248.3 MB in the end (delta: -44.5 MB). Peak memory consumption was 72.9 MB. Max. memory is 14.2 GB. [2020-10-11 15:02:38,653 INFO L168 Benchmark]: CDTParser took 0.46 ms. Allocated memory is still 249.0 MB. Free memory was 227.1 MB in the beginning and 226.3 MB in the end (delta: 839.0 kB). Peak memory consumption was 839.0 kB. Max. memory is 14.2 GB. [2020-10-11 15:02:38,654 INFO L168 Benchmark]: CACSL2BoogieTranslator took 663.75 ms. Allocated memory was 249.0 MB in the beginning and 305.7 MB in the end (delta: 56.6 MB). Free memory was 202.9 MB in the beginning and 260.2 MB in the end (delta: -57.3 MB). Peak memory consumption was 32.2 MB. Max. memory is 14.2 GB. [2020-10-11 15:02:38,655 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.73 ms. Allocated memory is still 305.7 MB. Free memory was 260.2 MB in the beginning and 258.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. [2020-10-11 15:02:38,656 INFO L168 Benchmark]: Boogie Preprocessor took 37.77 ms. Allocated memory is still 305.7 MB. Free memory was 258.5 MB in the beginning and 256.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. [2020-10-11 15:02:38,657 INFO L168 Benchmark]: RCFGBuilder took 385.04 ms. Allocated memory is still 305.7 MB. Free memory was 256.8 MB in the beginning and 233.8 MB in the end (delta: 23.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 14.2 GB. [2020-10-11 15:02:38,658 INFO L168 Benchmark]: TraceAbstraction took 3021.90 ms. Allocated memory was 305.7 MB in the beginning and 366.5 MB in the end (delta: 60.8 MB). Free memory was 233.8 MB in the beginning and 248.3 MB in the end (delta: -14.5 MB). Peak memory consumption was 46.3 MB. Max. memory is 14.2 GB. [2020-10-11 15:02:38,663 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46 ms. Allocated memory is still 249.0 MB. Free memory was 227.1 MB in the beginning and 226.3 MB in the end (delta: 839.0 kB). Peak memory consumption was 839.0 kB. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 663.75 ms. Allocated memory was 249.0 MB in the beginning and 305.7 MB in the end (delta: 56.6 MB). Free memory was 202.9 MB in the beginning and 260.2 MB in the end (delta: -57.3 MB). Peak memory consumption was 32.2 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 69.73 ms. Allocated memory is still 305.7 MB. Free memory was 260.2 MB in the beginning and 258.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 37.77 ms. Allocated memory is still 305.7 MB. Free memory was 258.5 MB in the beginning and 256.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. * RCFGBuilder took 385.04 ms. Allocated memory is still 305.7 MB. Free memory was 256.8 MB in the beginning and 233.8 MB in the end (delta: 23.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 14.2 GB. * TraceAbstraction took 3021.90 ms. Allocated memory was 305.7 MB in the beginning and 366.5 MB in the end (delta: 60.8 MB). Free memory was 233.8 MB in the beginning and 248.3 MB in the end (delta: -14.5 MB). Peak memory consumption was 46.3 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 870 VarBasedMoverChecksPositive, 44 VarBasedMoverChecksNegative, 10 SemBasedMoverChecksPositive, 34 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 62 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.6s, 78 PlacesBefore, 31 PlacesAfterwards, 70 TransitionsBefore, 22 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 59 TotalNumberOfCompositions, 2936 MoverChecksTotal - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 69 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.9s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 157 SDtfs, 123 SDslu, 177 SDs, 0 SdLazy, 115 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 24 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 100 NumberOfCodeBlocks, 100 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 92 ConstructedInterpolants, 0 QuantifiedInterpolants, 2940 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...